Yea I understand that but in the example of the 7372 , which on the spec sheet is listed as

"

RF Power Output**

26 dBm for 2.4GHz"

So, if I've got it set to 1/4 TX power then is that 26 dbm = 398mw so 1/4 would be ~100mw = 20dbm ? (which is the UK legal limit) . but I'm assuming that the value on the ZD GUI isnt the EIRP and so doesnt take into consideration antenna gain etc?